Nickel uye Nickel Alloy Welding Electrode
Ni307-2
GB/T ENi6133
AWS A5.11ENiCrFe-2
Tsananguro: Ni307-2 ielectrode yakagadzirwa nenickel ine hydrogen sodium coating shoma. Shandisa DCEP (direct current electrode positive). Sezvo weld ine huwandu hwakati hwemolybdenum, niobium nezvimwe zvinhu zve alloying, simbi yakachengetwa ine resistance yakanaka yekupwanya.
Mashandisirwo: Inoshandiswa pakushongedza nickel-chromium-iron alloys (senge UNS N08800, UNS N06600), inonyanya kukodzera pakushongedza simbi dzakasiyana, kushongedza transition layer uye kushongedza surfacing, uye inogona zvakare kushandiswa kana tembiricha yekushanda iri 980 ° C, asi inogona kuramba oxidation kana tembiricha yakakwira kupfuura 820 ° C. Kuderera kwebonde uye simba.
Kuumbwa kwemakemikari esimbi ye weld (%):
| C | Mn | Fe | Si | Cu | Ni |
| ≤0.10 | 1.0 ~ 3.5 | ≤12.0 | ≤0.8 | ≤0.5 | ≥62.0 |
| Cr | Nb + Ta | Mo | S | P | Zvimwe |
| 13.0 ~ 17.0 | 0.5 ~ 3.0 | 0.5 ~ 2.5 | ≤0.015 | ≤0.020 | ≤0.50 |
Hunhu hwesimbi ye weld:
| Chinhu chekuyedza | Simba rekusimba Mpa | Simba rekupa Mpa | Kureba % |
| Yakavimbiswa | ≥550 | ≥360 | ≥27 |
Inokurudzirwa yemagetsi:
| Dhayamita yetsvimbo (mm) | 2.5 | 3.2 | 4.0 | 5.0 |
| Welding current (A) | 60 ~ 90 | 80 ~ 100 | 110 ~ 150 | 130 ~ 180 |
Cherechedza:
1. Electrode inofanira kubikwa kweawa imwe chete pakupisa kwe300℃ isati yashandiswa pakunamira;
2. Zvakakosha kuchenesa ngura, mafuta, mvura, uye tsvina pazvikamu zvekunamira usati wanamira. Edza kushandisa arc pfupi kunamira.
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